This is the same error as bug 1306513, fix should be similar.
Verified on python27-python-virtualenv-13.1.0-2.el6 and python27-python-virtualenv-13.1.0-2.el7 packages. python-virtualenv now provides reasonable error message when file already exists. TCMS test case runs: https://tcms.engineering.redhat.com/run/305838/#caserun_15308644 https://tcms.engineering.redhat.com/run/305839/#caserun_15308814 https://tcms.engineering.redhat.com/run/305850/#caserun_15309980
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2017:1162